Claude Code

CLI Required

Anthropic's coding agent via JSON-RPC over stdio. Supports session resume, extended thinking, and multi-turn conversations with persistent context.

INSTALLATION

1. Install Claude Code CLI

# macOS / Linux

curl -fsSL https://claude.ai/install.sh | bash

# Windows

npm install -g @anthropic-ai/claude-code

2. Install ACP adapter

npm install -g @anthropic-ai/claude-code-acp

The ACP adapter wraps the CLI in a JSON-RPC interface that Blueprint AI can communicate with.

3. Authenticate

claude auth login

This opens a browser window to authenticate with your Anthropic account. Alternatively, set the ANTHROPIC_API_KEY environment variable.

4. Verify installation

claude --version && claude-code-acp --help

SUPPORTED_MODELS

Claude Sonnet 4Default. Fast, excellent tool use.

Claude Opus 4Extended thinking, highest quality reasoning.

Model selection is handled by the Claude Code CLI based on your account tier and configuration.

FEATURES

- Session resume -- Conversations persist across tab closes. Reopen a tab and continue where you left off.

- Extended thinking -- Claude Opus can use a thinking step before responding, improving accuracy on complex tasks.

- Streaming -- Responses stream token-by-token into the chat panel.

- Auto-detection -- Blueprint AI detects the Claude Code CLI from your PATH automatically.

REQUIREMENTS

- Node.js 18+

- Anthropic account with API access or Claude Pro/Team subscription

- Claude Code CLI and ACP adapter installed globally